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Malignant oncocytoma of the lacrimal sac: ultrastructure and immunocytochemistry
S Tomic1, T F Warner, J H Brandenburg
1Department of Pathology, University of Wisconsin Hospital and Clinics, Madison 53792, USA.
Ear, Nose, & Throat Journal
|October 1, 1995
Abstract:
Malignant oncocytoma of the lacrimal sac is a rare tumor. A third example is presented here. In addition to oncocytes, tumor acini also harbored a few mucin cells and myoepithelial cells. The presence of immunoreactive lactoferrin and secretory piece suggested a resemblance to parotid acinic cell carcinomas. The difference was marked by a compact acinar structure and myoepithelial cell differentiation in the oncocytoma.